Cistern.



PATENTED JAN. 13, 1903.

D. LBMLEY.

GISTERN.

ALPLIOATION FILED MAR. 15, 1902.

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lln'rrs starts ATENT OFFICE.

DAVID LEMLEY, OF NEW ORLEANS, LOUISIANA.

CISTERN.

SPECIFICATION forming part of Letters Patent No. 718,483, dated January13, I903. Application filed March 15, 1902. Serial No. 98,369. (Nomodel.)

T0 at whom it may concern.-

Be it known that I, DAVID LEMLEY, a citizen of the United States,residing at New Orleans, in the parish of Orleans and State ofLouisiana, have invented a new and useful Improvement in Cisterns, ofwhich the fol-' lowing is a specification.

This invention relates generally to cisterns, and more particularly toone provided with attachments for aerating the water and also with anattachment for the prevention of the propagation of malarial germs andmosquitos.

Another object of the invention is to provide overflowing-dischargeattachments, so that the cistern can be quickly and easily cleanedwhenever desired and all sediment removed therefrom.

With these various objects in view the invention consists in the novelfeatures of construction and combination, all of which will be fullydescribed hereinafter, and pointed out in the claims.

In the drawings forming part of this specification, Figure 1 is a viewof the cistern provided with my improvements. Fig. 2 is a sectional viewillustrating the attachment whereby the propagation of germs isprevented. Fig. 3 is a detail perspective view of the oil-holder. Fig.4is a sectional view illustrating the upper end of the aeratingpipe andthe connection between said pipe and the overflow-pipe.

Referring to the drawings, A indicates a cistern, which may be of anydesirable construction, and B is a supply-pipe leading to said cistern.This cistern ispreferably provided with a wire-gauze cover 0 in part orwhole, although such construction of cover is not absolutely necessary.

A four-way coupling D-is connected to the cistern adjacent to its lowerend, and to one member of said coupling is connected the aerating-pipeE, which extends upwardly to a point level with the top of the cistern.The upper end of said pipe is preferably protected by means of a pieceof wire-gauze E. By

means of this pipe a definite quantity of air is permitted to enter thecistern from the hottom and passing up through the water will aerate andpurify the water contained within the system.

A draw-oil? cock F is connected to the lower member of the coupling D,and by meansof this cook the contents of the cistern can be quickly andeasily removed and all sediment cleared away from the bottom of thecistern. In order to prevent the propagation of germs and mosquitos, Iemploy a pipe G, which passes horizontally through the coupling D, theinner end being turned upwardly within the cistern, as shown at G. Theouter end of the said pipe is turned downwardly and has a sphericaloil-holder H connected thereto, and between the said oil-holder H andcoupling D is arranged a valve or cock I. The spherical oil-holder H isformed with a tubular internally-threaded neck H, which is adapted toscrew upon the threaded end of the pipe G, and the packing-ring H ofrubber, is interposed between the upper end of said neck and the annularcollar which surrounds the lower end of the pipe, as most clearly shownat G a K indicates the overfiow-pipe,provided with a receiving-head K,arranged level with the upper end of the cylinder, and theconnecting-pipe K unites the overflow-pipe K with the areating-pipeadjacent with their-upper ends.

The oil-holder H is filled with oil and connected to the lower end ofthe pipe G, and by opening the valve or cock I a quantity of oil isforced therethrough and passes upwardly through the water and forms anoil skim upon the top of the water, thereby preventing the propagationof germs and mosquitos, so common in cisterns now in use. When thesupply of oil becomes exhausted, the holder H will be filled with Water,and it can be quickly and easily removed, the water discharged,refilledwith oil,and connected again to the pipe G. It is obvious that if thedraw-off cock F be opened, the pipe E open, the cock I closed, and thewater emptied from H and H replaced, the globe being filled with oil,that the lower part of E and the pipe between I and H will be filledwith air. Then if the valve in the pipe E above the coupling D (and thisvalve can be at any height con- 10o venient to reach) be closed and thevalve F closed the air contained in said pipe will be gradually forcedinto the cistern and escape upward through the water contained therein.Also the air confined between the valveI and globe H will be forced intothe cistern when oil is admitted.

By the attachments herein shown and described I am enabled to keep waterin the cistern pure and clean, as it is obvious that inasmuch as thereis no commingling with the oil and water the oil contained within thecistern will not be affected by the small quantity of oil required tomaintain the thin skim or covering at the top, and, furthermore, it willbe readily understood that the contents of the cistern can be quicklyand easily discharged at any time it is desired to clean the cistern.

Having thus fully described myinvention, what I claim as new, and desireto secure by Letters Patent, is-

1. A cistern having a four-part coupling connected thereto adjacent toits lower end, an aerating-pipe connected to said coupling, adischarge-cock connected also to the coupling and a pipe passing throughthe coupling, the inner end being turned upwardly within the cistern,and an oil holder or receptacle attached to the outer end of said pipe,substantially as specified.

2. The combination with the cistern, of a four-part coupling adjacent toits lower end, an aerating-pipe connected to said coupling, adischarge-cock connected also to the coupling, a pipe passing throughsaid coupling and having a valve or cock connected therewith, aspherical oil holder or receptacle attached to the outer end of saidpipe, and an overflowpipe connected with the cistern at its upper end,and also connected to the aerating-pipe adjacent to its upper end,substantially as described.

3. In a device of the kind described, the combination with a pipe turnedupwardly at its inner end, and downwardly at its outer end, a cock orvalve arranged intermediate the ends, and a spherical oil holder orreceptacle secured to the outer end of said pipe, and a packing-ringinterposed between the neck of said receptacle, and the collarsurrounding the pipe, substantially as described.

DAVID LEMLEY.

\Vitnesses:

EUGENE ABADIE, NEWTON .REINECKE.

